I have the following classes:
public class Quiz
{
public int Id { get; set; }
public string Title { get; set; }
public string Description { get; set; }
public string UserToken { get; set; }
public List<JoinQuizAndArea> AreasOfQuizzes { get; set; }
public List<QuizQuestion> Questions { get; set; }
}
public class QuizQuestion
{
public int ListRanking { get; set; }
public string Question { get; set; }
public string Answer1 { get; set; }
public string Answer2 { get; set; }
public string Answer3 { get; set; }
public int CorrectAnswer { get; set; }
public int QuizId { get; set; }
public Quiz Quiz { get; set; }
}
public class AreaOfQuiz
{
public int Id { get; set; }
public string Area { get; set; }
public List<JoinQuizAndArea> AreasOfQuizzes { get; set; }
}
public class JoinQuizAndArea
{
public int QuizId { get; set; }
public Quiz Quiz { get; set; }
public int AreaId { get; set; }
public AreaOfQuiz Area { get; set; }
}
and my DbContext:
public class ApplicationDbContext : IdentityDbContext<IdentityUser>
{
public DbSet<IdentityUser> Users { get; set; }
public DbSet<Quiz> Quizzes { get; set; }
public DbSet<AreaOfQuiz> Areas { get; set; }
public DbSet<QuizQuestion> Questions { get; set; }
public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options) { }
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<IdentityUser>();
modelBuilder.Entity<Quiz>();
modelBuilder.Entity<AreaOfQuiz>();
modelBuilder.Entity<QuizQuestion>()
.HasKey(quizQuestion => new { quizQuestion.QuizId, quizQuestion.ListRanking});
modelBuilder.Entity<JoinQuizAndArea>()
.HasKey(joinEntity => new { joinEntity.QuizId, joinEntity.AreaId });
modelBuilder.Entity<JoinQuizAndArea>()
.HasOne(join => join.Area)
.WithMany(c =>c.AreasOfQuizzes)
.HasForeignKey(join => join.QuizId);
modelBuilder.Entity<JoinQuizAndArea>()
.HasOne(bc => bc.Quiz)
.WithMany(c => c.AreasOfQuizzes)
.HasForeignKey(bc => bc.AreaId);
base.OnModelCreating(modelBuilder);
}
}
when I try to create the initial migration I got the following error: An error occurred while accessing the Microsoft.Extensions.Hosting services. Continuing without the application service provider. Error: Custom configuration for members is only supported for top-level individual members on a type. Unable to create an object of type 'ApplicationDbContext'. For the different patterns supported at design time, see https://go.microsoft.com/fwlink/?linkid=851728 Do someone have an idea how to resolve this problem?? Thanks :)
Update My start Up class:
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddCors();
services.AddControllers();
var mappingConfig = new MapperConfiguration(mapConfig =>
{
mapConfig.AddProfile(new QuizProfile());
mapConfig.AddProfile(new AreaOfQuizProfile());
mapConfig.AddProfile(new QuizQuestionProfile());
mapConfig.AddProfile(new QuizIdAreaIdToJoinQuizAndAreaProfile());
});
IMapper mapper = mappingConfig.CreateMapper();
services.AddSingleton(mapper);
services.AddDbContext<ApplicationDbContext>(options => options.UseSqlServer(Configuration["ConnectionString:QuizWorldDb"]));
services.AddIdentity<IdentityUser, IdentityRole>().AddEntityFrameworkStores<ApplicationDbContext>();
services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme).AddJwtBearer(config =>{
config.RequireHttpsMetadata=false;
config.SaveToken = true;
config.TokenValidationParameters = new TokenValidationParameters
{
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Secret"])),
ValidateIssuer = false,
ValidateAudience = false
};
});
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
app.UseAuthentication();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseCors(builder => builder
.AllowAnyOrigin()
.AllowAnyMethod()
.AllowAnyHeader());
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
}